Excessive Slowdown and Zoning Crashes

Whenever I attempt to leave a mission, the game crashes and I get this:

./piggs/geomBC.pigg: Corrupt pig file detected
Read failed for file: object_library/city_zones/Praetoria/First_Ward/Buildings/Brick_MidRises/Brick_SetA/P_Brick_Midrise_A.geo
-1

Your data might be corrupt, please run the patcher and try again.

I have used the 'Repair' option on the installer several times, with no results.

System Specs:

Intel(R) Core(TM) i5 CPU 650 @ 3.20GHz
36.256 GHz
3.0 GB RAM
Windows 7, 32 Bit
Intel(R) HD Graphics Card w/ 1.3 GB Video RAM
Direct X Version 11
1.7 TB Free Disc Space.

Any help would be appreciated. If you require more information I will do my best to accommodate you.

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I would suggest running a "chkdsk /r" on the drive where the game is installed and/or checking said drive with a diagnostic tool such as Crystal Disk Info; it could well be that you've got dodgy sectors on the drive that are resulting in file corruption.

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Tried the Crystal Disk thing, the drive came back good. Couldn't seem to get the other thing you mentioned to work properly, not sure what was supposed to happen, but it didn't.

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